Walter Mitty vs fantasist

Walter Mitty

noun
  • An imposter, especially one falsely claiming to have done military service. 

  • A sad or pathetic person given to flights of fancy; a daydreamer. 

fantasist

noun
  • One who creates fantasies. 

  • One living in a fantasy world. 

  • A writer who writes in the fantasy style. 

How often have the words Walter Mitty and fantasist occurred in a corpus of books? (source: Google Ngram Viewer )